How to set the SMS password of iphone6 plus?

If you can't set the password of Apple SMS, you can only set the screen lock encryption.

The specific operation methods and steps are as follows:

Enter the iPhone6Plus phone settings;

Then click the password option;

After checking the simple password, click Open Password;

Just enter a 4-digit password;

After setting, when we use the password again, we can unlock it by entering the set password.